The average sperm cell swims at 8 inches per hour.
4
Stress can result in more headaches as a result of the body rerouting blood flow to other parts of the body.
92
In one day, adult lungs move about 10,000 litres of air.
11
Human hair and fingernails continue to grow after death.
7
In 30 minutes, the average body gives off enough heat (combined) to bring a half gallon of water to boil.
198
Your thumb is about the same size as your nose.
124
Early American humans hunted car-size armadillos and used their shells for houses.
12
On average, a human being will have sex more than 3,000 times and spend two weeks kissing in their lifetime.
161